公开(公告)号：US10954853B2

公开(公告)日：2021-03-23

申请号：US16311295

申请日：2017-10-11

申请人： Mitsubishi Hitachi Power Systems, Ltd.

发明人： Fumihiro Chuman ,  Masashi Kitada ,  Makoto Toyomaru

IPC分类号： F02C3/28 ,  F23M5/08 ,  F22B37/20 ,  F02C6/18 ,  C10J3/48 ,  C10J3/52 ,  F01K23/10 ,  F22B1/24 ,  F01K23/06 ,  F22B21/34 ,  F01K23/14 ,  F22B31/00 ,  F22B37/12 ,  F23N3/00 ,  F22B37/10 ,  F22B1/18 ,  C10J3/74

摘要： The purpose of the present invention is to provide a furnace wall in which a throat section with a smaller channel diameter than other regions can be formed using all peripheral wall tubes. Provided is a furnace wall comprising: a plurality of peripheral wall tubes (142), which are disposed so as to form a cylindrical shape when aligned in one direction and through the interior of which cooling water flows; and fins (140) that connect neighboring peripheral wall tubes (142) in an airtight manner. In a throat section in which the diameter of a horizontal cross-section of the cylindrical shape is reduced in comparison to other regions, the peripheral wall tubes (142) are disposed so as to be in mutual contact and the fins (140) are disposed on the inner circumferential sides of the cylindrical shapes.

公开(公告)号：US20200284428A1

公开(公告)日：2020-09-10

申请号：US16765201

申请日：2018-11-28

申请人： General Electric Technology GmbH

发明人： Tihomir PIPLICA

IPC分类号： F22B37/47 ,  F22B37/10 ,  F22B13/18 ,  F01K13/00 ,  F22B37/44

摘要： A system for a power generation plant includes a boiler having a superheater, a first header fluidly coupled to an outlet of the superheater and being configured to receive steam from the superheater, a turbine elevated to a location generally adjacent to the outlet of the superheater, and a main steam piping system extending from the first header to the turbine and being configured to direct a flow of the steam from the first header to the turbine. The system further includes a flexible portion upstream from the first header operative to flex with respect to the first header and the boiler due to a thermal displacement of the boiler.

公开(公告)号：US10663237B2

公开(公告)日：2020-05-26

申请号：US15921618

申请日：2018-03-14

申请人： DOOSAN HEAVY INDUSTRIES & CONSTRUCTION CO., LTD. ,  University-Industry Cooperation Group of Kyung Hee University

发明人： Jin Bum Kim ,  Hyun Sik Kim ,  Young Suk Nam ,  Kyoung Hwan Song ,  Seung Tae Oh ,  Jae Hwan Shim ,  Dong Hyun Seo

IPC分类号： F28F13/18 ,  F22B37/10 ,  C23C22/05 ,  B05D5/08 ,  B05D7/14 ,  F28B1/02 ,  B05D1/18 ,  F28D21/00

摘要： The present disclosure relates to a heat transfer tube comprising nanostructures formed on the surface, and a method for manufacturing the same, and by forming nanostructures on a heat transfer tube surface, a superhydrophobic surface may be obtained under a high temperature environment as well. In addition, superhydrophobicity may be enhanced by further forming a hydrophobic coating layer on the nanostructure-formed heat transfer tube surface. By using a method of forming nanostructures by dipping the heat transfer tube surface, complex shapes may be coated, and therefore, a plurality of assembled heat transfer tubes may be coated, and damages occurring during a process of assembling the heat transfer tube after coating may be prevented.

公开(公告)号：US10648604B2

公开(公告)日：2020-05-12

申请号：US16063597

申请日：2018-01-05

申请人： Bechtel Oil, Gas & Chemicals, Inc.

发明人： Ismat Eljaouhari ,  Yuqing Liu ,  Philip Diwakar ,  Dan Lin ,  Ajay Prakash

IPC分类号： F16L55/04 ,  F28F9/02 ,  F28F21/08 ,  F22B37/10 ,  F16L41/08 ,  F16L41/04 ,  F15D1/02

摘要： A contoured branch fitting for reducing stress in a header pipe caused by acoustic induced vibration that includes a maximum width, a maximum length, a thickness that is greater along the maximum length and a constant radius between the branch connection and the header connection.

公开(公告)号：US20200032995A1

公开(公告)日：2020-01-30

申请号：US16047851

申请日：2018-07-27

申请人： Cleaver-Brooks, Inc.

发明人： Randall R. Frazier ,  Greg R. Kaup ,  Meenatchinathan Vasudevan

IPC分类号： F22B1/18 ,  F22B37/00 ,  F22B37/10 ,  F22B37/12

摘要： A modular heat recovery steam generator (mHRSG) comprises a first boiler module comprising a plurality of pipes having at least one pipe with a flanged end; a first piping deck comprising a plurality of pipes having at least one pipe with a flanged end, wherein the pipe with the flanged end is secured to the pipe with the flanged end of the first boiler module using bolts; a second boiler module comprising a plurality of pipes having at least one pipe with a flanged end; a second piping deck comprising a plurality of pipes having at least one pipe with a flanged end, wherein the pipe with the flanged end is secured to the pipe with the flanged end of the second boiler module using bolts; and a main stack. The first boiler module is operatively coupled to the second boiler module and the second boiler module is operatively coupled to the main stack.

公开(公告)号：US10464160B2

公开(公告)日：2019-11-05

申请号：US14438308

申请日：2013-10-17

申请人： SIEMENS AKTIENGESELLSCHAFT

发明人： Jan Brückner ,  Martin Effert

IPC分类号： B23K11/00 ,  F22B37/10 ,  F22B37/18 ,  B23K11/31

摘要： A resistance point welding apparatus for fixing a turbulence installation body to an inner wall of a steam generator pipe, having a welding head, which is introduced into the pipe and includes a lance having an electrically conductive material, a point welding electrode, which projects out of the lance in the radial direction, an effective element and an insulation body, which is opposite the point welding electrode in the radial direction and is moved by the effective element, is provided. The lance is tapered at a defined distance from the welding head end such that the insulation body and the point welding electrode press the turbulence installation body against the inner wall of the pipe when the effective element is activated. When a welding stream is impressed on the lance, a point-like welding stream flows via the point welding electrode to a counter electrode arranged outside the pipe.

公开(公告)号：US10371373B2

公开(公告)日：2019-08-06

申请号：US15288753

申请日：2016-10-07

申请人： National Boiler Service, Inc.

发明人： Kurt Johnson ,  Robert Hunter ,  David Duplissey

IPC分类号： F16L3/10 ,  B21D39/06 ,  B21D53/06 ,  B23P15/26 ,  F22B37/10 ,  B25B27/02 ,  B25B27/06

摘要： A boiler tube clamp including a first U-shaped midsection configured for pressing against one side of a boiler tube, a first hinge member arranged on one end of the first midsection, a threaded bolt hingedly attached to the other end of the first midsection, and a second U-shaped midsection configured for pressing against the other side of the boiler tube. The clamp further includes a second hinge member arranged on one end of the second midsection and hingedly connected to the first hinge member so that the first inner surface and the second inner surface close toward one another. A lip extends radially out from the second midsection and a jackscrew extends through the lip for adjusting the distance a boiler tube contained by the clamp extends into a boiler through a boiler header.

公开(公告)号：US20190083944A1

公开(公告)日：2019-03-21

申请号：US16125978

申请日：2018-09-10

申请人： DRI-STEEM Corporation

发明人： James Michael Lundgreen ,  David Baird ,  Joseph T. Haag ,  Mark Allen Kirkwold ,  Scott Allen Nuteson

IPC分类号： B01F3/04 ,  F22B37/00 ,  F24F6/18 ,  F22B37/10

摘要： A steam dispersion system including insulation is disclosed. The steam dispersion system may include a steam dispersion tube with at least one opening defined on an outer surface of the steam dispersion tube and a hollow interior. The insulation covers at least a portion of the steam dispersion tube, the insulation defining an opening aligned with the opening of the steam dispersion tube, wherein the insulation meets 25/50 flame/smoke indexes for UL723/ASTM E-84 and has a thermal conductivity less than about 0.35 Watts/m−K (2.4 in−hr/ft̂2 deg F.). A nozzle defining a throughhole may be placed within the opening of the steam dispersion tube, the throughhole being in fluid communication with the hollow interior of the steam dispersion tube to provide a steam exit.

公开(公告)号：US20190017697A1

公开(公告)日：2019-01-17

申请号：US16035633

申请日：2018-07-14

申请人： English Boiler, LLC

发明人： John R. English ,  Sundeep Bodapati

IPC分类号： F22B21/10 ,  F22B37/10 ,  F22B21/22

摘要： A package multiple pass flexible water tube boiler having staggered tubes that are substantially identical in length. The staggered tube arrangement, along with the inclusion of a plurality of baffles, optimizes heat transfer and minimizes the footprint of the unit.

公开(公告)号：US09969889B2

公开(公告)日：2018-05-15

申请号：US14692339

申请日：2015-04-21

申请人： KABUSHIKI KAISHA TOSHIBA

发明人： Masato Okamura ,  Osamu Shibasaki ,  Koji Negishi ,  Seiji Yamamoto ,  Hajime Hirasawa ,  Kenji Yamazaki ,  Tetsuji Kaneko

IPC分类号： C09D5/08 ,  C23F11/18 ,  C23F11/08 ,  F01D5/28 ,  F16L58/08 ,  F22B37/02 ,  F22B37/10 ,  C08K3/22 ,  C08K3/26 ,  C08K5/098 ,  G21D1/00

CPC分类号： C09D5/08 ,  C08K3/22 ,  C08K3/26 ,  C08K5/098 ,  C08K2003/221 ,  C23F11/08 ,  C23F11/18 ,  C23F11/185 ,  F01D5/288 ,  F05D2220/31 ,  F16L58/08 ,  F22B37/025 ,  F22B37/108 ,  G21D1/00 ,  Y10T428/273

摘要： The present invention provides a corrosion-resistant structure for a high-temperature water system comprising: a structural material 1; and a corrosion-resistant film 3 formed from a substance containing at least one of La and Y deposited on a surface in a side that comes in contact with a cooling water 4, of the structural material 1 which constitutes the high-temperature water system that passes a cooling water 4 of high temperature therein. Due to above construction, there can be provided the corrosion-resistant structure and a corrosion-preventing method capable of operating a plant without conducting a water chemistry control of cooling water by injecting chemicals.